Mixing faucet



June 1'7, 1924. 1,498,205

A. RUETsCl-u ET AL MIXING FAUCET Filer). Jlllzv 29. 192) 2 Sheets-'Sheet 2 Patented .lune 17, 1924..

UNITEDSTAIES PATENT ori-ica ARNOLD RuETscIII AND CHARLES sIEGR-Is'r, or LeKnWooD, OHIO; SAID RUEtrscHI AssIGNoR 'rio SAID ,s IEGRIsT.

MIXING FAUCET.'

Application led [uly 29, 1921. Serial No. 488,270. i

To all whom t may concern.'

Be it known that we, ARNOLD RUE'rsCHi' and CHARLES F. Sineiiisr, citizens of the VUnited States, residing at Lakewood, "in the county of Cuyahoga and `Statepof` Ohio, have invented a certain new and useful linprovement in Mixing yFaucets, of which'the following is a full, clear, and exact .description, reference being had to .theaccompanying drawings.

This invention relates to mixing faucets, and yhas for .its general object to provide a faucet of this 'cliaracterwhich will euable the operator, bykrotating av faucet handle iii either direction froni"off position, to draw first warm .water from ya faucet common to both the cold and the j hot water pipe of a sink, bathtub, or other fixture and, by further rotationof the faucet handle in one direction o'r the' other, to cut off either the hot or the cold water,leav ing only the cold or the hot water 'as the case may be. F or instance, if the faucet handle be turned toward the cold water side ofthe faucet, both hot and cold water will be turned on simultaneously tof the mixing chamber, with the result that .warm water will -be delivered from sucli chamber. Fun` ther rotation of the .handle in the same `direction will cut ofi' the hot Water and pro'- ygressively increase the supply of cold `water to said chamber. On the other hand, if the faucet handle be turned in the opposite direction, hot and cold water will both be delivered to the mixing cliamber,'wliile further rotation of the handle 'in this direction will cut off the cold water 4and progressively increase the supply of the `hot water to said chamber.

A further object of the invention is to provide a valve construction wherein the individual valves `which control the admission of cold and hot water to the mixing chamber may be conveniently7 yand efiicientv` ly operated for the purpose of varying the proportionsof the hot; and cold water to the common mixing chamber with which the faucet communicates. A still further object of the invention is to improve the construction of faucets of this character and of the valves therefor. -We accomplish the foregoing general objects, aswell as others which will be pointed out hereinafter, in `and through .the construction and arrangement of parts shown in the drawings forming w.part hereof wherein Fig. 1 rep- -resents a longitudinal sectional elevation through the hot and cold water pipe .con-

nections and our mixing faucet, showing one of the valve members `in open and the other in closed position, FigsQ, 3 and 4 are sectional views ycoriesponding respectively to the lines '2Q-2 3-'3 land i-4 of -F ig. 1, the valves in Fig.2 however Lbeing both closed; yFig'j is a sectional plan view corresponding to the line 5-5 of Fig. 4; Fig.` l

is a detail in bottom plan` and Fig.` "7 is a detail in perspective 'ofthe cam plate `for operating the individual `valves of our device; and" Fig. 8 is a detail in perspec- Ative of one ofthe valves.

Describing the various parts by reference characters, 1 denotes a hot waterpipe andfQ` alc-'old Water pipe connecting with opposite sides of the bottom section of a faucet casing. This lbottoin section .pro-

vides diametrically opposed connections 3 and t for the pipes l and 2, respectively',`

with a horizontal bottom pla-te @anda horizontal upper plate 5, said plates be- .ingcon'nected by a transverse rib 6, `there being receiving chambers, 7 and 8, one on each sideof the rrib 6.

The bottom plate i :is provided with a pair of diameti'icall-y opposedr vertical iiiternal'ly threaded connections, indicated iat 4 and` 4b on opposite sides Aof the rib F. The upper ends ofthese connections are preferably -iiush ,with the bottom plate li. Projecting upwardly fromfthepeiziphery of the disk is an annular flange 11, said flange forming, with an Vupper trans-verse rib v12vand a cover plate or wall 12a, a pair of chambers 7a and 8u each communieating through a port 13 and 141-, respectively, with lthe chambers 7 y,and 8, respectively. The wall 12Z1 is provided with dia metrically opposed threaded openings '115 yand 16, into each of which isthreaded an outer hooded valve guidehindicated at 17 and 18 respectively and each having a iiaiige (indicated at 17a and 18:1) adapted to engage the top of the tplate 12a.` Into the bottom of each sleeveil't', 18 fitted a tubular bronze valve `seat proper, as indicated at 17b and 18".

Slidably mounted `in the tops of the guides 17 and 18 and in the tubular seats 17D, 18h, are the valves which control the flow of liquid from the chambers 7, 7a, 8 and 8EL to the mixing chamber 32'd above the plate 12a. Each valve comprises tubular stem, indicated at 2O and 20a, respectively, and each having openings 20, 20' therethrough adapted to receive water flowing above its valve proper and to deliverthe same through the openings 17C, 13C. Each valve proper comprises a disk 2l, 22 connected to its appropriate stem 20, 201. The bottom of each disk projects beyond the appropriatevseat portion 17h, 18h, and is provided with a suitable packing ring adapted to engage such seat. In the upper end of each of the stems 20, 20a there is iitted an operating plug, preferably of hard rubber and indicated at 23 and 24, adapted to be engaged by cam projections on a cam plate to be described hereinafter.

Projecting below the bottom plate 4 are the internally threaded connections 4a, 4l?, each adapted to receive a plug 25, 26 respectively, said plugs being hollow and each provided with a seat for the reception of a spring, yindicated at 27, 28 respectively, the upper ends of said springs bearing respectively against the valves 2l and 22 and normally assisting the water pressure in the chambers 7a and 8a in holding the said valves seated. Each of these plugs is of such length as to enable it to be projected into and adjusted across the chambers 7 and 8 respectively, thereby to vary as desired the size of the passageways between the lower and upper chambers and accordingly the proportions between the hot and cold water entering the chambers 7"t and 8a. rlhreaded on the bottoms of the plugs 25 and, 26 are the caps 29, 30 respectively.

The outer edge of the plate l2a is threaded as shown at 3l, to receive the internally threaded lower end of the upper section 32 of the faucet casing. This upper section forms with the plate or wall l2" a mixing chamber 32a from which the liquid supplied through either or both of said valves may be discharged through an outlet 33 to the faucet spout 34. j

The casing 32 is provided beneath its top with a flat seat 35 and with a central opening, which central opening is adapted to receive the stem 36 of a cam plate, indicated generally at 3T. This cam plate is generally circular in outline, its upper surface being shaped to conform to the seating portion 35 therefor, which seating portion includes an annular packing ring 38 in a recess therein.

For convenience" of description, that part of the assembly` from which the faucet spout 34 projects will be referred to as the front. The cam plate is provided with an elongated segmental main cam 39, nearly 1800 in extent, and a pair of auxiliary cams 40, 40, each located adjacent to an end of the main cam, with a neutral space 40b therebetween and each located adjacent to a stop projection 4l, 41, respectively.

ln operation, the cam plate will be inserted into the upper casing section 32 before the same is threaded onto the lower section and will be arranged so that, when the valves are closed, the elongated main cam 39 will be at the rear and midway between the valves 2l and 22, while the cams 40, 4t)a will be at the front of the said valves, respectively. An operating handle 42 is connected to the stem 36, as by means of a threaded pin 43. By rotating this handle to the right, the cam projection 39 will engage the stem of the hot water valve 2l and the right hand cam 40 at the same time will engage the stem of the cold water valve 22. The hot and cold water valves will be opened proportionately until the lowest spoton the cam 40 engages the stud 24 of the valve 22, when the maximum quantity of cold water for this direction of turning will be -delivered through the valve 22 to mix with the hot water. By further rotation in the right-hand direction, the cam 40 will ride olf the valve stud 24 and the valve 22 will then close. During this short movement, the supply of cold water will quickly decrease while the supply of hot water will gradually increase, after which only hot water will flow into the mixing chamber. By the time the deepest point of the cam 39 is in engagement with the stud 23, the stop 4l will have engaged the stop projection, which, as shown, is provided by an overflow nipple 33L threaded into the delivery outlet 33 and providing a non-draining mixing chamber' 32a, since the nipple projects above the bottom of the chamber.

Reference has been made heretofore to the use of hard rubber for the operating plugs or extensions 23 and 24 of the valve stems 20. It has been found that this material not only stands up under long and frequent usage but that it does not score the operating parts of the cams.

The bottom of the hub of the handle 42 is provided with an annular recess surround ing the stem 36 in which there is placed an annular packing ring 45, bearing on the flattened top of the neck of the casing section 32. This packing ring is held in place and the handle is retained in any position to which it may be turned by means of a plurality of springs 46, each mounted in an upwardly extending chamber 47 in said hub.

By rotating the handle 42 in the reverse direction, the hot water Valve will be operated by the cam 40 and the cold water valve by the cam 39 in the same manner that these cams respectively operated the cold Water valve and the hot water valve in the preceding operation, rotation in the right-hand direction being finally checked by the engagement ot the stop 4l with the nipple 33a, at which time the maximum lOW of cold Water will be delivered from the spout 34.

In the operation of the faucet, it Will bey evident that Warm water Willbe delivered therefrom, irrespective of the direction of rotation ot the handle l2 from its neutral position, and that further rotation ot the handle in the appropriate direction wiilli cause the temperature of the warm water to be increased or reduced, and the faucet iinally will deliver its maximum capacity ot hot or cold Water.

The construction and arrangement oit the faucet enables the parts thereof to be conveniently assembled and disassembled; enables the proportions of the hot and cold Water supplied to the valves to be varied conveniently, in addition to the variation accomplished by the valves themselves; and the construction as a whole is particularly well adapted forall of the ordinary incidents o'f use. y

Having thus what we claim is:

l. A faucet comprising a casing, a. hot and a cold water connection communicating with said casing, a valve controlling the i'low oi water from each connection to a mixingr chamber, and means Jfor opening said valve, said means comprising a rotary plate mounted in operative relation to said valves and having an elongated main cam adapted to operate one valve or the other, in accordance with its direction of rotation trom neutral position,and a pair of short auxiliary cams, each located adjacent to the end ot said elongated cam and each adapted to operate one only ot said valves said auxiliary cams being spaced apart to t'oriii a low section on the plate dianietiically opposite the high point ot the main cam.

2. A faucet comprising a casing have a hot and a cold water connection, a valve controlling the lioiv ot' waterl from each connection to a mixing chamber, and means for opening said valve, said means comprising a rotary plate mounted in operative relation to said valves andlhaving main described our invention,

cani arranged between said valves andy adapted to operate one or the other, in accordance with its direction of rotation from neutral positioinand a pair of short auxiliary cams, each adapted and arranged to operate the valve which is not being operated by said main' cani said auxiliary cams being spaced apart to torni a low section on the plate diametrically opposite rthe high point of the main cam.

' 3. A faucet comprising a casing khaving a mixing chamber, a hot and a cold Water connection communicating` with said casing,

avalve controlling the lioiv ot water from each connection to the mixing chamber, and means 'tor opening said valves, said means `comprising a rotary member adapted by roto cut ott' the hot Water and admit cold` water only in increasing quantity to the mixing chamber.

4. .A faucet comprising a casing having a mixing chamber, a hot and a `cold Water` connect-ion communicating with said casing, a valve controlling the flow of Water from each connection tothe mixing chamber, and means tor opening said valves, said means comprising av rotatable member adapted to operate each ot said valves alone as Well asV in conjunction with the other, thesaid mixing chamber having an elevated outlet, and stops on said member cooperating outlet.

A mixing having a bottom Wall, a wall above and spaced trom the bottom Wall, and a pair of chambers between said Walls, a hot. Water connection and a cold Water connection communicating with said chambers, respectively, the second wall having openings therethrough coil'imunicating with said chambers respectively rand with chambers above the said wall, a valve seat sleeve in each of the last mentioned chambers, an upwardly seating valve'cooperating with each seat and hai/'ing au operating stem extending above the sie-ve therefor, a cam plate rotatably mounted in the upper part oil the casing and having thereon cams Jfor operating said valves singly or in unison, the bttom wall having a pair ot openings, and a plug for eachiy et the last mentioned openings and adiustable toward and trom the second wall whereby the wid'i'h ot the passageways leading trom the first mentioned chamber to the second mentioned chamber may be varied.

G. el mixing faucet comprising a casing having a bottom wall, a wall above and s 'l JL. spacer., iioni the bottom wall, and a pair oi chambers between said Walls, a hot Water connection and a cold water connection comniunicating with said chambers, respectively, the second wall having openings therethrough communicating with said chambers respectively and with chambers above the said wall, a valve seat sleeve in each of the with said taucet comprising a casingy ico7 last mentioned chambers, an upwardly seatfirst mentioned chamber to the second mening valve cooperating; with each Seat and tioned chamber may be Varied. having an ope1atin0sste1n,1neans for oporatl In testimony whereof, We hereunto aiHX 10 ing said Stems, and a plug foi each of the our signatures.

5 last mentioned openings and adjustable to- Ward and from the second Wall whereby 'the ARNOLD RUETSCHI.

width of the passageways leading from the CHARLES F. SIEGRIST. 

